Management of urolithiasis in the congenitally abnormal kidney (horseshoe and ectopic)

Abstract

Purpose of review 

Urolithiasis in horseshoe and ectopic kidneys presents unique challenges in the decision-making and technical aspects of stone treatment. Specific renal anatomy, stone size and associated conditions such as ureteropelvic junction obstruction are factors that may influence treatment. Detailed review of imaging is important to ensure efficient stone treatment and minimize complications.

Recent findings 

Widespread use of extracorporeal shockwave lithotripsy for calculi in congenitally abnormal kidneys is now giving way to stone-size and anatomy-appropriate therapeutic decision making. Multiple modalities including shockwave lithotripsy, ureteroscopy, percutaneous nephrolithotomy and laparoscopy are being employed in this group of patients.

Summary 

Treatment decisions for stones in horseshoe and ectopic kidneys can be challenging, and must be made on an individual basis taking into account multiple variables.